Revert all SASL authzid (new feature) commits

- Revert all commits related to the SASL authzid feature since the next
  release will be a patch release, 7.65.1.

Prior to this change CURLOPT_SASL_AUTHZID  / --sasl-authzid was destined
for the next release, assuming it would be a feature release 7.66.0.
However instead the next release will be a patch release, 7.65.1 and
will not contain any new features.

After the patch release after the reverted commits can be restored by
using cherry-pick:

git cherry-pick a14d72c a9499ff 8c1cc36 c2a8d52 0edf690

Details for all reverted commits:

Revert "os400: take care of CURLOPT_SASL_AUTHZID in curl_easy_setopt_ccsid()."

This reverts commit 0edf6907ae37e2020722e6f61229d8ec64095b0a.

Revert "tests: Fix the line endings for the SASL alt-auth tests"

This reverts commit c2a8d52a1356a722ff9f4aeb983cd4eaf80ef221.

Revert "examples: Added SASL PLAIN authorisation identity (authzid) examples"

This reverts commit 8c1cc369d0c7163c6dcc91fd38edfea1f509ae75.

Revert "curl: --sasl-authzid added to support CURLOPT_SASL_AUTHZID from the tool"

This reverts commit a9499ff136d89987af885e2d7dff0a066a3e5817.

Revert "sasl: Implement SASL authorisation identity via CURLOPT_SASL_AUTHZID"

This reverts commit a14d72ca2fec5d4eb5a043936e4f7ce08015c177.

1 files changed, 0 insertions, 71 deletions

diff --git a/docs/examples/imap-authzid.c b/docs/examples/imap-authzid.c
deleted file mode 100644
index bfe7d71d7..000000000
--- a/docs/examples/imap-authzid.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/***************************************************************************
- *                                  _   _ ____  _
- *  Project                     ___| | | |  _ \| |
- *                             / __| | | | |_) | |
- *                            | (__| |_| |  _ <| |___
- *                             \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
- *
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at https://curl.haxx.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ***************************************************************************/
-
-/* <DESC>
- * IMAP example showing how to retreieve e-mails from a shared mailed box
- * </DESC>
- */
-
-#include <stdio.h>
-#include <curl/curl.h>
-
-/* This is a simple example showing how to fetch mail using libcurl's IMAP
- * capabilities.
- *
- * Note that this example requires libcurl 7.66.0 or above.
- */
-
-int main(void)
-{
-  CURL *curl;
-  CURLcode res = CURLE_OK;
-
-  curl = curl_easy_init();
-  if(curl) {
-    /* Set the username and password */
-    curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
-    curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
-
-    /* Set the authorisation identity (identity to act as) */
-    curl_easy_setopt(curl, CURLOPT_SASL_AUTHZID, "shared-mailbox");
-
-    /* Force PLAIN authentication */
-    curl_easy_setopt(curl, CURLOPT_LOGIN_OPTIONS, "AUTH=PLAIN");
-
-    /* This will fetch message 1 from the user's inbox */
-    curl_easy_setopt(curl, CURLOPT_URL,
-                     "imap://imap.example.com/INBOX/;UID=1");
-
-    /* Perform the fetch */
-    res = curl_easy_perform(curl);
-
-    /* Check for errors */
-    if(res != CURLE_OK)
-      fprintf(stderr, "curl_easy_perform() failed: %s\n",
-              curl_easy_strerror(res));
-
-    /* Always cleanup */
-    curl_easy_cleanup(curl);
-  }
-
-  return (int)res;
-}